VW has issued a recall for 850,000 vehicles with defective Takata airbag inflators, 170,000 of which belong to Audi.
"Volkswagen says the driver's side frontal airbags use "non-desiccated" SDI and PSDI-5 Takata inflators. Non-desiccated simply means they aren't protected from moisture. That moisture is at the heart of the exploding airbags, as it's believed moisture affects the explosive chemical used to deploy the airbags."
Volkswagen says no SDI or PSDI-5 Takata inflators have exploded in Volkswagen or Audi vehicles, but those same type of inflators have exploded in vehicles from other automakers.